addEventHandler("onClientGUIClick", resourceRoot, 
 function() 
    if (source == gridlist) then 
        local sel = guiGridListGetSelectedItem(gridlist) 
        local text = guiGridListGetItemData(gridlist,sel,1) 
        local player = getPlayerFromName(text) 
        if (player) then 
            triggerServerEvent("getSerial", localPlayer, Name ) 
        guiSetAlpha(memo, 0.48) 
        else 
        guiSetText ( memo , "" ) 
        guiSetAlpha(memo, 0.17) 
        end 
    end 
end) 
  
  
addEvent("setSerial",true) 
addEventHandler("setSerial", root, 
 function(Name, Serial) 
    guiSetText(memo,'Player Name: '..Name..' \n Player Serial: '..Serial) 
end) 
 
addEvent("getSerial",true) 
addEventHandler("getSerial", root, 
 function(Name) 
    local playerName = getPlayerName(Name) 
    local playerSerial = getPlayerSerial(Name) 
    triggerClientEvent(source,"setSerial", source, playerName, playerSerial) 
end) 
[/b]